Picture projecting or exhibiting means



May 11 1926.

N. PEMBERTON-BILLING PICTURE PROJECTING OR EXHIBITING MEANS Filed May 8, 1925 3 Sheets-Sheet l May 11 1926. 1,584,708

N. PEMBERTON-BILLING PICTURE PROJECTING OR EXHIBITING MEANS Fi led May 8, 1925 3 Sheets-Sheet 2 May 11 1926. 1,584,708

N. PEMBERTON-BILLING PICTURE PROJECTING R EXHIBITING MEANS File-d May 8, 1925 3 Sheets-Sheet 3 W f g czar J Patented May 11, 1926.

UNITED STATES P'AT'ENT OFFICE.

NOEL rEimBnn'roN-BrLLING, or ennon,

ENGLAND, ASSIGNOR OF ONE-HALF TO WORLD RECORD LIMITED, 01 CROMWELL WORKS, LONDON, ENGLAND, A BRITISH COMPANY.

PICTURE PROJECTING- OR EXHIBITING MEANS.

Application filed Kay 8,

This invention consists in improvements in or relating to picture-projecting means and has for its object to provide means whereby pictures may be projected on to a screen or otherwise viewed to illustrate the subjectmatter of a gramophone or like record. The projection of the pictures will be synchronous with the passages in the subject-matter of the record which it is desired to illustrate. v

According to the present invention, apparatus for the above purpose comprises in combination a picture-band, a stylus operative as a stop, means to impart movement. to said stylus, and shifting means movable transversely to the path of the stylus and operatively connecting between the stylus and the picture-band for shifting the latter when the stylusl attains a predetermined position in relation to the shifting means. Conveniently either the stylus or the shifting means, preferably the latter, moves in a circular path and the other moves in a path transverse thereto, for example a path which is substantially radial to that of the circular movement.

Where the term picture-band occurs herein, this term is to be understood as including any arrangement or collection of pictures which are preferably disposed sideby-side either in contiguity with one another or separated from one another by a space.

The term stylus is to be understood throughout the specification as including a pin or other member which serves as a stopfor the shifting means and where hereinafter the term track-member is employed it is to be understood as including a gramophone or like .record having a spiral, helical or other impression groove thereon or anyother n'rember in or on which the required track is rovided.

More pbrrticularly the present inventioncomprises in combination a picture-band, a track-member in the form of or bearing on it a spiral track, a stylus to engage said spiral track, means to impart relative rotation between the said track-member and the stylus about the axis of rotation of the track-member, and shifting means operatively connected between said stylus and the picture-bandfor shifting the latter when the stylus .at-

1925. Serial No. 28,841.

tains a predetermined position or positions along said track. In one form of the invention the spiral track is the spiral recordgroove of a gramophone or like record, and the stylus is the sound-box stylus of the gramophone or the like which engages within the recordgroove.

In order that the invention may be more clearly understood one preferred construction will now be described in'detail, by Way ofexample only with the aid of the accompanying drawings, in which Figure 1 is a perspective view of the apparatus according to the invention shown as applied to the turntable of a gramophone or like device;

Figure 2 is a central longitudinal section throiligh the apparatus illustrated in Figure v Figure 3 is a view looking from the left of Figure 2 with the front cover of the ap paratus removed;

Figuure 4 shows in elevation the inner side of the front cover of the apparatus;

Figure 5 illustrates the type of pictureband employed;

Figure 6 illustrates the clip by which the pictures are'secured in position;

Figure 7 illustrates the shifting means employed; and

Figures 8, 9 and 10 illustrate successive positions occupied by a clutch-actuating member employed in the apparatus.

Like reference numerals indicate like parts in the several figures of the drawings.

The track-member is rotatable and is conveniently, as shown. in Figures 1 and 2, agramophone disc-record 1 bearing on it a The shifting means comprise a device -which is frictionally engaged with the track member or record and is shown clearly in Figures 1 and 7. It comprises a curved member 3 having a notched arcuate edge 4 to be engaged by a stylus 5 Which in the example shown, is the stylus of a gramo phone sound-box shown' in chain lines at 6.

With the member 3 is associated a segmental member 7 the periphery of which is roughened at 8. In the member 7 there is an arcuate slot 9 for the purpose which will be more clearly explained hereinafter. The members 3 and 7 are clipped together at 10 by means of a headed pin on the member 7 which passes into a' key hole slot in an inturned end of the member 3. At the other end of the latter another inturned end 11 is" formed-with a central aperture 12 which ing means 3, 7, and friction between the inotches, will not be s track-member and that means will thereupon move the latter to bring a face of the next notch into engagement with the stylus. The latter acts as a stop to hold the shifting means until it (the stylus) has again moved sufficiently to free it from that notch and so on in succession through all the notches. If required, to reduce friction between the shifting means and the surface of the record 1 the shifting means may be carried on feet or pa s 12 such that the friction between them and the record surface while being sufiicient to move the shifting means when the styl s leaves one of the cient to impede unduly theoperation of the motor which drives the turntable 2.

The picture-projecting means is enclosed within a casing 13 having at its forward end a cylindrical container 14 enclosed by a removable front cover 15. Within the casing 13 there is a main spindle 16 carried at one end in abearing 17 mounted in the back of the cylindrical container 14 and at the other .';-.end in a journal bearing 18 mounted on a on it a .cam 21. The sleeve 19 is slottransverse portion or wall constituting part of the casing 13.

On the spindle 16 is slidingly mounted a sleeve 19 which carries a cam disc 20 bearat one end so that the slots engage rad al pins 22 extending outwardly fro-m opposite sides-of the spindle 16. Thus the plns 1n engagement within the slots permit sliding. movement of the sleeve in respect of the spindle but-prevent relative rotation of those parts. A light coiled spring 23 held in compression between the end of the sleeve 19 and aboss 24 fixed on the spindle 16 tends .to press the sleeve 19 always towards the right of Figures 1 and 2.

At the other end of the sleeve 19 there is a second. disc 25 bearing on it two teeth 26 which are adapted to be engaged by project-.

ing pins 27 which are carried on a rubbertyred track-wheel 28.

The wheel 28 is carried on a sleeve 29 rotatably mounted on the exterior of the bearing 18.

Disposed in the path of the cam 21 is a fixed stop 30 supported from bracket members 31 which extend across between opposite side walls of the casing 13. When the high part of the cam 21 is in engagement with the fixed stop 30, as shown in Figure 2, the teeth 26 are held clear of the pins 27 so that the track-wheel 28, which engages through the slot 9 with the surface of the record 1 and is rotated thereby, rotates freely without turning the spindle 16. When the high part of the cam 21 passes from engagement with the stop 30 the sleeve 19 moves to the right of Figures 1 and 2 so that the teeth 26 then lie in the path of the pins 27 and are engaged by them.

Extending from the boss 24 on the spindle 16 is a radial arm 32 in the outer end of which is pivoted a link 33 having a balance weight 34 secured to or formed as part of it. The outer end of the link 33 is pointed and engages with the roughened margin 8 of the member 7. Y

As will be explained hereinafter, the spindle 16, by means of the mechanism just described, is intermittently rotated and during each intermittent rotation it effects the shift of one picture for the next. The means effecting this shift of position of the pic ture-band are as follows :On the end of the spindle 16 is secured a member 35 having. a pin'36 extending from it in the direction of the axis of the spindle 16. When the spindle is rotated the pin 36 engages with a tooth of a toothed wheel 37, a complete revolution of the spindle 16 advancing the member 37 through an angular distance equivalent to that of one tooth space. A back stop pawl member 38 is held by means of a spring 39 so that its end 40 engages the teeth of the member 37 to prevent retrograde movement of that member while allowing it to he turned by the pin 36. k

The member 37' is-carried at one end of a hub 41 which is rotatably mounted on a spindle 42 secured by means of a bolt 43 to the back wall'of the cylindrical container 14. At the'other end of the hub 41 and spaced from the member 37 is a disc 44 shown clearly in Figure 3. In this disc are formed two slots 45, and two pins 46 project outwardly from it. The picture-carrying member (i. e. the picture-band hereinbefore referred to) is in the form of a disc having a plurality of'pictures 470 equidistantly spaced apart near thema-rgin of the disc. This is shown clearly in Figure 5' The member 47 has slots '48 adapted to register with the slots 45, and has orifices 49 which are adapted to pass over the pins 46. It will be spindle 42.

noticed that the pins 46 are unequally spaced from the centre of the disc 44 so as to facilitate correct assembly of the picture member.

After the slots 48 of the picture member have been passed over the pins 46 a clip 50, Figure 6, is applied so that slots 51 in it pass over the pins 46 whereafter it is slid so that spring tongues 52 enter the registering slots 48, 45 in the picture member and the disc 44 respectively. Thus the picture member is held firmly between the clip 50 and the disc 44, and is unable to move angularly in relation to the disc 44.

The front cover 15 enclosing the picture member is in the form of a circular plate and is held in position by means ofa screw 53 entering a screw-threaded orifice in the On its outer surface the front cover 15-is formed with tubular portions 54 in which are received legs 55 held therein by means of a set-screw 56, the latter enabling the height of the legs 55 to be adjustable. It also carries a tubular socket 57 in which is slidingly received antgher tube 58 carrying a projector lens 59.

On the inner or back surface of the cover same as that of an individual picture on the member 47. The plate 60 is rotatably mounted centrally in the cover plate and can be moved by means. of a handle 62 projecting through a slot in the cover plate to the front thereof. 1

In the casing 13 is a removable top cover 63 in which there is a fitting for the reception of a carrier for a lamp 64, the light from which, aided by a reflector 65, is projected through an aperture 66 in the back wall of the ,casing 14, thence through the picture strip and through aperture Gland an aperture in the front cover 15 to the projector-lens 59.

1 The operation of the apparatus is as-folows:

With the parts in the position illustrated in Figures 1 and 2 the wheel 28 is continuously rotated as the record 1 rotates without, however, turning the spindle 16 as the teeth 26 are disengaged from the pins 27. Figure 8 shows, looking from the right of lin 33.

As the stylus 5 travels in the spiral track of'the record, surface it will be moved.

radially inwards, and will eventually pass from engagement with the notch on the member 3 by which the latter is, for the time bein held-stationary. -The shifting device wil then be suddenly rotated rapidly to brin the next notch into engagement with the sty us 5 and in so doing the roughened margin 8, upon which the pointed end of the link 33 rests will impart a push to the end of that and will throw it approximately re 2, the position of the arm 32 and 'tosecure by Letters the teeth with them and rotate the disc 25 and with it the spindle 16 and member 35 so that the pin 36 makes one complete rotation and advances the member 37 through an angular distance equal to one tooth space. This results in a change of the picture pro- -jected through the lens 59 as will be readily understood.

Towards the end of a complete rotation of the spindle 16 the arm 32 and link 33 assume the position shown in Figure 10 and during the last stages of the rotation of the spindle the link drops by gravity to the position shown in Figure 8 and the arm 32 is arrested in such a position that the high part of the cam 21 remains in engagement with thestop 30 thereby moving the teeth 26 out of the path of the pins 27. A similar cycle of operations is repeated each time that the stylus 5 passes from one notch to the next in the member 3.

The member 60 serves, by means of the slot 61, to register the projected picture accurately on the screen or the like on which the picture is viewed and focussing of the lens 59 is brought about by sliding the tube instant of change. Alternatively individual portions of the record can be selected beforehand for illustration and the notches formed on the member 3 accordingly so that a picture is brought on to the screen at the moment when it is desired to illustrate the.

particular feature selected. In the latter case the member 3 would only serve for one particular record whereas in the former case one member 3 will serve for every record. I

While I have illustrated and described one embodiment of my invention, it will be understood that it is not limited thereto but may be otherwise embodied within the scope of the appended claims.

What I claim as my invention and desire atent is 1. The combination with a revolving member having a track thereon, of means movably guided by the track, a picture strip at an angle to the revolving member having a series of pictures thereon positive actustrip, whereby the pictures are successively displayed, and means for controlling the movement so imparted, said last-mentioned means being associated with the track-guided means and controlled thereby.

2. The combination with a revolving memher having a track thereon, of a stylus movably guided by the track, a picture strip at an angle to the revolving member having a series of pictures thereon, positive actuating means associated with the revolving member imparting movement to the picture strip, whereby the pictures are successively displayed, and means for controlling the movement so imparted, said last-mentioned means being associated with the stylus and controlled thereby.

3. The combination with a revolving member having a track thereon, of a stylus movably guided by the track, a picture strip having a series of pictures thereon, means associated with the revolving member for imparting movement to the picture strip, whereby the pictures are successively displayed, means controlling the movement so imparted, said last-mentioned means comprising a clutch eflective for transmitting motion from the movement-imparting means to the picture strip, and stylus-controlled means for intermittently operating the clutch.

4. The combination with a revolving member having a track thereon, of a stylus movably guided by the track, a picture display device, a picture strip associated with the picture display device, means associated with the revolving member for imparting movement to the picture strip, whereby the pictures are successively displayed, means controlling the movement so imparted, said last-mentioned means comprising a clutch effective for transmitting motion from the movement-imparting means to the picture strip, and stylus-controlled means for inter mittently operating the clutch 5. The combination with a revolving member having a track thereon, of a stylus movably guided by the track, a picture display device, a picture strip associated with the picture display device, means associated with the revolving member for imparting,

movement to the picture strip, said movement-imparting means comprising a friction wheel which engages the revolving member, means controlling the movement imparted bythe friction wheel, said last-mentioned means comprising a clutch effective for transmitting motion from the friction wheel to the picture strip, and stylus-controlled means for intermittently operating the clutch.

6. The combination with a revolving member having a track thereon, of a stylus movably guided by the track, a picture display device, a picture strip having a series of pictures thereon associated with the picture display device, means associated with the revolving member for imparting movement to the picture strip, whereby the pictures are successively displayed, said movement-imparting means' comprising a friction wheel which engages the revolving member, means controlling the movement so imparted, said last-mentioned means comprising a clutch effective for transmitting motion from the friction wheel to the picture strip, and stylus-controlled means for intermittently operating the clutch, said clutchoperating means comprising a plate having a serrated edge which engages the stylus, a toothed surface associated with said plate, a pawl engaging said toothed surface and operatively connected to the clutch, whereby motion of the serrated plate controlled by the stylus, is made effective for operating the clutch.

7 The combination with a revolving member having a track thereon, of a stylus movably guided by the track, a picture display device, a picture strip having a series of pictures thereon associated with the picture display device, means associated with the revolving member for imparting move ment to the picture strip, whereby the pictures are successively displayed, said movement-imparting means comprising a friction wheel which engages the revolving member, n'ieans controlling the movement so imparted, said last-mentioned means compris ing a clutch effective for transmitting motion from the friction wheel to the picture strip, stylus-controlled means for intermittently operating the clutch, said clutch-operating means comprising a plate having a serrated edge which engages the stylus, a toothed surface associated with said plate, a pawl engaging said toothed surface and operatively connected to the clutch, whereby motion of the serrated plate, controlled by the stylus, is made effective for operating the clutch, and means maintaining the picture strip in fixed tposition during thetime of display thereo v 8. The combination with a gramophone having a record support and a record there on, of a stylus guided across the record, stylus-controlled means for successively dismember having notches therein, said stylus being adapted to engage the notches, a pic- 'ture strip moving mechanism, and means notches into engagement with a succeeding notch, to effect the operation thereof.

9. Apparatus of the class described comprising in combination with a picture-band,

a stylus, means for imparting a movement to the stylus, shifting means movable trans- ,playing pictures, said means including a versel'y to the path of the stylus and controlled by the stylus, picture strip operating mechanism and means operatively engaging the shifting means and controlling the operating mechanism. I

having a'record support and a record ,there-- on, of a stylus 'for engagement with the record and movable transversely with re spe'ct thereto, a picture-band, a picture-band moving mechanism frictionally. engaging the record, a clutch interposed'between said and stylus controlled means fOr' intermittently operating the clutch-to successively advance the picture strip. a

12. .The combination with a gramophone having a record support and a record thereon, a stylus movable across the record, a

curved notched member over the record whose notches are adaptedto engage the stylus and to become successively disengaged by the movement of the stylus across the record,

said curved member being frictionally engaged with the record whereby it is moved when the stylus moves from 'engagementwith one notch to engagement with another notch, a picture display mechanism for successively projecting pictures, and means operatively engaging the curved member and controlling the picture display mechanism.

13. The combination with a revolving member having a spiral track, of means guided in the track, and a picture strip display mechanism'operatively associated with said means, driving mechanism for positively moving the strip, and a control element for the driving mechanism operated by said means.

14. The combination with a revolving member having a track therein, of a movable stylus guided in, the track and operated thereby, a revolving picture strip, means for revolving the picture strip, a clutch interposed between the'picture strip and the revolving means therefor, and clutch-operating means controlled by said stylus.

f15. The combination with a turntable having a central pin, a spirally grooved record on the'turntable, a shifting mechanism resting on the'record and received on the central pin of the turntable, said shifting mechanism including a curved strip hav-' ing a plurality of ndtches in one edge there -of and a plate having a notched segmental surface, anda projector mechanism having asupport at thecentral pin of the turntable and haying a fixed support beyond the turntable, a stylus #engaging the record and movable with respect to the notched element of said shifting mechanism, a shaft in the projecting mechanism, a wheel on the shaft moving mechanism and the picture-,bandf engaging the record and rotated thereby, a clutch for transmitting motion from the wheel ito the shaft, means engaging the toothed segment of said plate member of the shifting means for controlling the operation of the clutch, and a picture-band operated bythe rotation of said shaft.

' 16. A picture projecting attachment for gramophones including a projector having a picture-band advancing mechanism and a shifting mechanism for controlling the operation ofthe picture-band advancing mechanism, said picture-band operating mechanism including a rotating shaft, means for rotating the shaft, a clutch between the shaft and the rotatingmeans, a pawl on the shaft, said shifting means including an elementsupported on the turntable of a gramophone and having a stylus engaging segment and a toothed segment for engagement with said pawl, said pawl serving to actuate the clutch when the shifting mechanism is advanced, and a cam for releasing the clutclrwhen the picture-band has advanced a. predetermined distance.

i In testimony whereof I affix my signature.

NOEL PEMBERTON-BILLING. 

